A diesel engine intake pipe

CN224606505UActive Publication Date: 2026-08-07MAANSHAN CHANGLIFA MACHINERY MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MAANSHAN CHANGLIFA MACHINERY MFG
Filing Date
2025-01-16
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

现有的柴油机进气管主要通过挤压弹簧球来对旋转圆环进行卡接限位,然而柴油机在运行时会产生振动,振动会使得挤压弹簧球来回弹性晃动,当晃动幅度过大时挤压弹簧球容易脱离卡槽使得限位解除,牢固性较差

Benefits of technology

[0013]The beneficial effects of this utility model are as follows: by setting a connecting component, the filter tube and the connecting seat can be connected more securely. The connecting component is fixed by pins to the limiting grooves on the outer wall of the filter tube through multiple sets of limiting pins, which makes the limiting more secure. The linkage component in the connecting component drives multiple sets of sliding blocks to move synchronously through the cooperation of worm gear and worm wheel. The multiple sets of sliding blocks drive multiple sets of limiting pins to insert into multiple sets of limiting grooves at the same time to fix the filter tube. The disassembly and assembly are more time-saving and efficient. At the same time, the self-locking effect of worm gear and worm wheel makes the connection between the connecting seat and the filter tube stable and not easy to fall off due to the vibration of the diesel engine.

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Abstract

The utility model discloses a diesel engine air intake pipe, including the air intake pipe main part, the air intake pipe main part one side is equipped with the installation pipe, the installation pipe is connected with the air intake pipe main part through bolt, the installation pipe is fixed with the connecting seat one side away from the air intake pipe main part, the connecting seat one side away from the installation pipe is equipped with the filter pipe. Advantageous effects: through setting up the connecting assembly can connect filter pipe and connecting seat more reliable, wherein connecting assembly passes through a plurality of limit post and the limit slot on filter pipe outer wall bolt fastening, and the limit is more reliable, and the linkage assembly in connecting assembly drives a plurality of sliding blocks synchronous movement through worm and worm wheel cooperation, and a plurality of sliding blocks drive a plurality of limit post and insert a plurality of limit slot simultaneously and fix the filter pipe fixed column, and the dismounting is more time -efficient, and the self -locking effect of worm and worm wheel makes connecting seat and filter pipe connection stable, and it is not easy to fall off by diesel engine operation vibration.
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Description

Technical Field

[0001] This utility model relates to the field of diesel engine technology, and more specifically, to a diesel engine intake manifold. Background Technology

[0002] The intake manifold of a diesel engine refers to the pipe that introduces the gases required for combustion into the engine. The intake manifold must ensure sufficient flow area, avoid bends and abrupt changes in cross-section, and improve the surface smoothness of the pipe to reduce resistance.

[0003] According to Chinese Patent CN202121698494.7, a diesel engine intake pipe includes a main body, an intake filter mechanism movably mounted on the left side of the main body, and a filter fixing device fixedly mounted on the left side of the outer surface of the main body. The filter fixing device filters the gas entering the main body. During diesel engine operation, the intake pipe needs to draw in air for mixing. The intake filter mechanism effectively removes impurities from the outside air, preventing excessive particle accumulation in the diesel engine and thus reducing its service life. After prolonged use, the intake filter mechanism accumulates a lot of impurities, affecting the normal operation of the diesel engine. The filter fixing device facilitates the replacement and cleaning of the intake filter mechanism and ensures that large particles do not enter the diesel engine during use, thereby effectively improving the service life of the diesel engine. Existing diesel engine intake pipes mainly use a compression spring ball to lock and limit the rotating ring. However, diesel engines vibrate during operation, causing the compression spring ball to swing back and forth elastically. When the swing amplitude is too large, the compression spring ball is prone to disengaging from the slot, thus releasing the limit and resulting in poor stability.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a diesel engine intake pipe to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A diesel engine intake manifold includes an intake manifold body, an mounting pipe on one side of the intake manifold body connected to the intake manifold body by bolts, a connecting seat fixedly provided on the side of the mounting pipe away from the intake manifold body, a filter pipe provided on the side of the connecting seat away from the mounting pipe, the filter pipe connected to the connecting seat by a connecting assembly, a filter head fixedly provided on the side of the filter pipe away from the connecting seat, a fiberglass board provided on one side of the filter head, the connecting assembly including an installation groove in the connecting seat, a plurality of sliding blocks arranged in a circumferential array in the installation groove, a guide rod penetrating the sliding blocks in the installation groove, a limiting post extending out of the installation groove on one side of the sliding block, a limiting groove matching the limiting post on the outer wall of the filter pipe, and a linkage assembly connected to the sliding blocks in the installation groove.

[0008] Preferably, the connecting seat has a first fitting ring on one side, and the outer wall of the filter tube is fitted with a second fitting ring that matches the first fitting ring. The first fitting ring has a sealing groove on one side, and the second fitting ring has a sealing gasket that matches the sealing groove on one side. The first fitting ring has several evenly distributed positioning grooves on one side of the sealing groove, and the second fitting ring has a positioning post that matches the positioning groove on one side.

[0009] Preferably, the sliding block has a guide groove that matches the direction of the guide slide rod.

[0010] Preferably, the linkage component includes an annular worm gear disposed in the mounting groove. The annular worm gear is connected to the connecting seat via a bearing. A plurality of stroke grooves arranged in a circumferential array are opened on one side of the annular worm gear. A matching push block is disposed in the stroke groove. One side of the push block extends outside the stroke groove and is connected to the sliding block. The outer wall of the connecting seat is provided with a mounting box communicating with the mounting groove. A worm matching the annular worm gear is disposed in the mounting box.

[0011] Preferably, the worm gear is connected to the mounting box via a bearing, and one side of the worm gear extends outside the mounting box and connects to the knob.

[0012] Preferably, the outer wall of the knob is fitted with an anti-slip rubber sleeve.

[0013] The beneficial effects of this utility model are as follows: by setting a connecting component, the filter tube and the connecting seat can be connected more securely. The connecting component is fixed by pins to the limiting grooves on the outer wall of the filter tube through multiple sets of limiting pins, which makes the limiting more secure. The linkage component in the connecting component drives multiple sets of sliding blocks to move synchronously through the cooperation of worm gear and worm wheel. The multiple sets of sliding blocks drive multiple sets of limiting pins to insert into multiple sets of limiting grooves at the same time to fix the filter tube. The disassembly and assembly are more time-saving and efficient. At the same time, the self-locking effect of worm gear and worm wheel makes the connection between the connecting seat and the filter tube stable and not easy to fall off due to the vibration of the diesel engine. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of a diesel engine intake pipe according to an embodiment of the present utility model;

[0016] Figure 2 This is a front view of a diesel engine intake pipe according to an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the structure of a connecting seat in the intake pipe of a diesel engine according to an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of a connecting seat in the intake pipe of a diesel engine according to an embodiment of the present utility model;

[0019] Figure 5 This is a front view of the interior of a connecting seat in the intake pipe of a diesel engine according to an embodiment of the present utility model;

[0020] Figure 6 yes Figure 4 A magnified view of a portion of point A in the middle;

[0021] Figure 7 This is a schematic diagram of the structure of a filter pipe in the intake manifold of a diesel engine according to an embodiment of the present invention.

[0022] In the picture:

[0023] 1. Intake pipe body; 2. Mounting pipe; 3. Bolt; 4. Connecting seat; 5. Filter pipe; 6. Filter head; 7. Fiberglass board; 8. Fitting ring one; 9. Fitting ring two; 10. Sealing groove; 11. Sealing gasket; 12. Positioning groove; 13. Positioning post; 14. Mounting groove; 15. Sliding block; 16. Guide slide rod; 17. Limiting post; 18. Limiting groove; 19. Annular worm gear; 20. Bearing one; 21. Stroke groove; 22. Push block; 23. Mounting box; 24. Worm; 25. Bearing two; 26. Knob. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to an embodiment of the present invention, a diesel engine intake pipe is provided.

[0026] Example 1;

[0027] like Figure 1-7 As shown, the diesel engine intake pipe according to an embodiment of the present invention includes an intake pipe body 1. An installation pipe 2 is provided on one side of the intake pipe body 1. The installation pipe 2 is connected to the intake pipe body 1 by bolts 3. A connecting seat 4 is fixedly provided on the side of the installation pipe 2 away from the intake pipe body 1. A filter pipe 5 is provided on the side of the connecting seat 4 away from the installation pipe 2. The filter pipe 5 is connected to the connecting seat 4 by a connecting assembly. A filter head 6 is fixedly provided on the side of the filter pipe 5 away from the connecting seat 4. A fiberglass board 7 is provided on one side of the filter head 6. The connecting assembly includes an installation groove 14 opened in the connecting seat 4. A plurality of sliding blocks 15 arranged in a circumferential array are provided in the installation groove 14. A guide rod 16 penetrating the sliding blocks 15 is provided in the installation groove 14. A limiting post 17 extending out of the installation groove 14 is provided on one side of the sliding block 15. A limiting groove 18 matching the limiting post 17 is opened on the outer wall of the filter pipe 5. A linkage assembly connected to the sliding blocks 15 is provided in the installation groove 14.

[0028] Example 2;

[0029] like Figure 1-7As shown, the device includes an intake pipe body 1. An installation pipe 2 is provided on one side of the intake pipe body 1. The installation pipe 2 is connected to the intake pipe body 1 by bolts 3. A connecting seat 4 is fixedly provided on the side of the installation pipe 2 away from the intake pipe body 1. A filter pipe 5 is provided on the side of the connecting seat 4 away from the installation pipe 2. The filter pipe 5 is connected to the connecting seat 4 via a connecting assembly. A filter head 6 is fixedly provided on the side of the filter pipe 5 away from the connecting seat 4. A fiberglass board 7 is provided on one side of the filter head 6. The connecting assembly includes an installation groove 14 formed in the connecting seat 4. Several sliding blocks 15 arranged in a circular array are provided in the installation groove 14. A guide rod 16 penetrating the sliding blocks 15 is provided in the installation groove 14. A limiting post 17 extending out of the installation groove 14 is provided on one side of the sliding block 15. A limiting groove 18 matching the limiting post 17 is formed on the outer wall of the filter pipe 5. A linkage assembly connected to the sliding blocks 15 is provided in the installation groove 14. The connecting seat 4 has a fitting ring 8 on one side, and the filter tube 5 has a fitting ring 9 on its outer wall that matches the fitting ring 8. The fitting ring 8 has a sealing groove 10 on one side, and the fitting ring 9 has a sealing gasket 11 on one side that matches the sealing groove 10. The fitting ring 8 has several evenly distributed positioning grooves 12 on one side of the sealing groove 10, and the fitting ring 9 has a positioning post 13 on one side that matches the positioning groove 12. The sliding block 15 has a guide groove that matches the guide slide rod 16. The linkage component includes an annular worm gear 19 disposed in the mounting groove 14. The annular worm gear 19 is connected to the connecting seat 4 via a bearing 20. A plurality of stroke grooves 21 arranged in a circular array are formed on one side of the annular worm gear 19. A matching push block 22 is disposed in each stroke groove 21. One side of the push block 22 extends outside the stroke groove 21 and connects to the sliding block 15. The outer wall of the connecting seat 4 is provided with a mounting box 23 communicating with the mounting groove 14. A worm 24 matching the annular worm gear 19 is disposed in the mounting box 23. The worm 24 is connected to the mounting box 23 via a bearing 25. One side of the worm 24 extends outside the mounting box 23 and connects to a knob 26. The outer wall of the knob 26 is fitted with an anti-slip rubber sleeve.

[0030] In practical application, the filter tube 5 is installed by first connecting the installation tube 2 to the intake pipe body 1 using bolts 3. Then, the filter tube 5 is inserted into the connecting seat 4. During this process, the second fitting ring 9 on the filter tube 5 is aligned with the first fitting ring 8 on the connecting seat 4, so that the positioning post 13 on the second fitting ring 9 is inserted into the positioning groove 12 on the first fitting ring 8. At the same time, the sealing gasket 11 on the second fitting ring 9 enters the sealing groove 10 on the first fitting ring 8. Then, the operator rotates the knob 26, which drives the worm gear 24 to rotate. The worm gear 24 drives the annular worm wheel 19 to rotate. The annular worm wheel 19 presses multiple sets of pushing blocks 22 through the inner wall of the stroke groove 21, causing the multiple sets of pushing blocks 22 to move synchronously. The push block 22 moves the limiting post 17 to the outside of the mounting groove 14 via the sliding block 15 and inserts it into the positioning groove 12 on the outer wall of the filter tube 5 to fix it. By setting the connecting component, the connection between the filter tube and the connecting seat can be more secure. The connecting component is fixed by pins to the limiting groove on the outer wall of the filter tube through multiple sets of limiting posts, which makes the limiting more secure. The linkage component in the connecting component drives multiple sets of sliding blocks to move synchronously through the cooperation of worm gear and worm wheel. Multiple sets of sliding blocks drive multiple sets of limiting posts to insert into multiple sets of limiting grooves at the same time to fix the filter tube. The disassembly and assembly are more time-saving and efficient. At the same time, the self-locking effect of worm gear and worm wheel makes the connection between the connecting seat and the filter tube stable and not easy to fall off due to the vibration of the diesel engine.

[0031] In summary, by utilizing the above-mentioned technical solution of this utility model, the connection between the filter tube and the connecting seat can be made more secure by setting a connecting component. The connecting component is fixed by pins to the limiting grooves on the outer wall of the filter tube through multiple sets of limiting pins, making the limiting more secure. The linkage component in the connecting component drives multiple sets of sliding blocks to move synchronously through the cooperation of worm gear and worm wheel. The multiple sets of sliding blocks drive multiple sets of limiting pins to insert into multiple sets of limiting grooves at the same time to fix the filter tube. The disassembly and assembly are more time-saving and efficient. At the same time, the self-locking effect of the worm gear and worm wheel makes the connection between the connecting seat and the filter tube stable and not easy to fall off due to the vibration of the diesel engine.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A diesel engine intake manifold, comprising an intake manifold body (1), characterized in that, The intake pipe body (1) has an installation pipe (2) on one side, which is connected to the intake pipe body (1) by bolts (3). A connecting seat (4) is fixedly provided on the side of the installation pipe (2) away from the intake pipe body (1). A filter pipe (5) is provided on the side of the connecting seat (4) away from the installation pipe (2). The filter pipe (5) is connected to the connecting seat (4) by a connecting assembly. A filter head (6) is fixedly provided on the side of the filter pipe (5) away from the connecting seat (4). A fiberglass board (7) is provided on one side of the filter head (6). The connecting component includes an installation groove (14) in the connecting seat (4), a plurality of sliding blocks (15) arranged in a circular array in the installation groove (14), a guide rod (16) passing through the sliding block (15) in the installation groove (14), a limiting post (17) extending to the outside of the installation groove (14) on one side of the sliding block (15), a limiting groove (18) matching the limiting post (17) on the outer wall of the filter tube (5), and a linkage component connected to the sliding block (15) in the installation groove (14).

2. The diesel engine intake manifold according to claim 1, characterized in that, The connecting seat (4) is provided with a fitting ring one (8) on one side, and the outer wall of the filter tube (5) is fitted with a fitting ring two (9) that matches the fitting ring one (8). A sealing groove (10) is provided on one side of the fitting ring one (8), and a sealing gasket (11) that matches the sealing groove (10) is provided on one side of the fitting ring two (9). A plurality of evenly distributed positioning grooves (12) are provided on one side of the fitting ring one (8) located in the sealing groove (10), and a positioning post (13) that matches the positioning groove (12) is provided on one side of the fitting ring two (9).

3. The diesel engine intake manifold according to claim 1, characterized in that, The sliding block (15) has a guide groove that matches the direction of the guide slide rod (16).

4. A diesel engine intake manifold according to claim 1, characterized in that, The linkage component includes an annular worm gear (19) provided in the mounting groove (14). The annular worm gear (19) is connected to the connecting seat (4) through a bearing (20). A plurality of stroke grooves (21) arranged in a circular array are provided on one side of the annular worm gear (19). A matching push block (22) is provided in the stroke groove (21). One side of the push block (22) extends to the outside of the stroke groove (21) and is connected to the sliding block (15). The outer wall of the connecting seat (4) is provided with a mounting box (23) that communicates with the mounting groove (14). A worm (24) that matches the annular worm gear (19) is provided in the mounting box (23).

5. A diesel engine intake manifold according to claim 4, characterized in that, The worm (24) is connected to the mounting box (23) via bearing two (25), and one side of the worm (24) extends to the outside of the mounting box (23) and is connected to the knob (26).

6. A diesel engine intake pipe according to claim 5, characterized in that, The outer wall of the knob (26) is fitted with an anti-slip rubber sleeve.

Citation Information

Patent Citations

  • Diesel engine air inlet pipe

    CN215408934U